Centretown Observatory:

Baro. Pressure + Rel. Humidity

Times in Eastern Daylight Time (EDT = GMT-4)

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   LIVE OBSERVATIONS at CTO Weather Centre - Tuesday, May 12, 2026 at 12:24 EDT
   TODAY:

   Tuesday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Current Barometric Pressure:

               

   Maximum Today:

07:39     2022      

   Minimum:

02:14           2013

   Mean:

  2022 2013
 

   Current Relative Humidity:

33 %   36 %                

   Maximum Today:

63 % 06:54 78 %     95 % 2024      

   Minimum:

31 % 10:44 36 %           6 % 2022

   Mean:

47 %   57 % 51 % 74 % 2024 22 % 2022
 

   YESTERDAY:

   Monday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Maximum Barometric Pressure:

00:39   2025      

   Minimum:

01:04           2013

   Mean:

   mb 2022 2013
 

   Maximum Relative Humidity:

83 % 05:44 88 %     98 % 2013      

   Minimum:

37 % 17:19 45 %           6 % 2022

   Mean:

60 %   66 % 58 % 87 % 2015 20 % 2017
 

   TOMORROW:

   Wednesday

         

   Normal

   RecHi

   YY

   RecLo

   YY

   Barometric Pressure:

              2023 2016

   Daily Mean BP:

           mb 2020 2016
 

   Relative Humidity:

              97 % 2017 9 % 2021

   Daily Mean RH:

          57 % 72 % 2024 27 % 2023
 

   THIS MONTH:

   May Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Monthly Mean BP:

 mb 2023 2017
 

   Monthly Mean RH:

56 % 60 % % 68 % 2024 44 % 2023
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

12 05 2023-26 2023-01

   Daily Mean BP:

11 04 2023-26 2023-01
 

   Relative Humidity:

91 % 10 21 % 03 99 % 2013-23 1 % 2017-01

   Daily Mean RH:

68 % 10 42 % 03 87 % 2015-11 1 % 2017-01
 

   LAST MONTH:

   Apr Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

 mb 2013 2020
 

   Mean Relative Humidity:

65 % 65 % 54 % 65 % 2026 22 % 2017
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

08 18 2023-30 2020-17

   Daily Mean BP:

08 05 2023-30 2012-19
 

   Relative Humidity:

99 % 03 18 % 23 100 % 2024-05 1 % 2017-06

   Daily Mean RH:

98 % 16 35 % 23 98 % 2026-16 1 % 2017-06
 

   NEXT MONTH:

   June Monthly Records

     Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

   mb 2020 2018
 

   Mean Relative Humidity:

  59 % 71 % 2024 56 % 2016
 

   June Daily Records

 

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

  2020-15 2018-29

   Daily Mean BP:

  2020-14 2018-29
 

   Relative Humidity:

  100 % 2021-13 0 % 2019-16

   Daily Mean RH:

  94 % 2013-07 28 % 2019-08
 

   THIS YEAR:

   2026 Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Annual Mean BP:

 mb 2013 2012
 

   Annual Mean RH:

70 % 67 % 61 % 77 % 2026 54 % 2013
 

   Monthly Extremes + Records

   Max

   MM

   Min

   MM

   RecHi

   YY-MM

   RecLo

   YY-MM

   Monthly Mean BP:

Mar Jan 2023-May 2018-Jul
 

   Monthly Mean RH:

77 % Jan 65 % Apr 83 % 2023-Jan 22 % 2017-Apr
 

   Daily Extremes + Records

   Max

   MM-DD

   Min

   MM-DD

   RecHi

   Date

   RecLo

   Date

   Barometric Pressure:

Jan-24 Mar-17 2023-05-26 2021-08-10

   Daily Mean BP:

Jan-24 Mar-17 2023-05-26 2021-08-10
 

   Relative Humidity:

99 % Mar-07 18 % Apr-23 100 % 2021-06-13 0 % 2019-06-16

   Daily Mean RH:

98 % Apr-16 35 % Apr-23 100 % 2022-12-31 1 % 2017-03-27
 

   LAST YEAR:

   2025 Means

   Mean

   Airport

   Normal

   Annual Mean BP:

 mb
 

   Annual Mean RH:

67 % 72 % 61 %

   Monthly Extremes

   Max

   MM

   Min

   MM

   Monthly Mean BP:

Oct Mar
 

   Monthly Mean RH:

80 % Nov 59 % Aug

   Daily Extremes

   Max

   MM-DD

   Min

   MM-DD

   Barometric Pressure:

Feb-02 Dec-29

   Daily Mean BP:

Oct-09 Dec-29
 

   Relative Humidity:

99 % Mar-04 14 % Oct-24

   Daily Mean RH:

94 % Oct-31 38 % May-11
This page was last regenerated 2026-05-12@12:25.
It is sheduled to be regenerated whenever there are new data; approximately every five minutes.
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BP - Live - Today:
 

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BP - Live - Yesterday:
 

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BP - Live - Past 7 Days:
 

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